Pump-motor.



No. 69|,447. Patented lan. 2|, |902.4

G. w.` 000K.

PUMP MOTOR.

{Application led Mar. 18, 1901.

(No Model.)

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.through the same.

UNITED STATES PATENT OFFICE.

GEORGE W. COOK, OF MONROE CI'IY, INDIANA, `ASSIGNOR OF ON E-IIALF TO JOHN II. MYER, OF VINCENNEINDIANA.

PUMP-MOTOR.

SPECIFICATION formngpart of Letters raient No. 691,447, dated January 21, 1902.

Application led March 18,1901. Serial No. 51,681. '(No model.)

To all whom, it may concern:

Be it known that LGEORGE W.COOK, a citizen of the UnitedStates, residing at Monroe City, in the county of Knox and State of Indiana, have invented a certain new and useful Pump-Motor, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to pump-motors, and the object in View is to provide a simple and reliable mechanical motor which is adapted to be substituted or used in place of the ordinary windmill erected above a well for automatically pumping water into a suitable storage tank or receptacle.

The invention has among other objects to provide means for throwing the major portion of the driving-gear ont of operation whenever itis desired to wind up the weight which forms the actuating medium for the powertransmitting mechanism; also, to provide means lfor checking or holding fixed the major portion of the power-transmitting mechanism duringvthe operation of winding the motor-shaft orfwhenever for any reason it is desired to stop the machine-for example, when the storage tankor receptacle is filled.

A further object of the invention is to provide a novel form of extensible pitman,which connects with the pump-plunger, in order to,

adapt the machine to pumps' of different constructions and heights and also for the purpose of varying the stroke of the pump-plunger.

With the above and other objects in View, the nature of which will appear more fully as the description proceeds, the invention consists in the novel construction, combination, and arrangement of parts hereinafter fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a pum p-motor constructed in accordance with the present invention. Fig. 2 is a plan view of the same. Fig. 3 is an enlarged longitudinal section through the eX- tensible pitman. Fig. 4 is a cross-section Fig. 5 is an enlarged de` tail elevation of the brake mechanism.

Similar numerals of reference designate corresponding parts in each of the figures.

The pump-motor contemplated in this invention comprises, essentially, a stand 1, comprising a series of corner-posts 2, connected by cross-braces 3 and united at their tops bya rectangular frame comprising side and end bars 4 and 5, respectively. The construction of the stand may, however, be' varied, as it is not material to the present invention. The stand is designed to be placed over the platform of the well in connection with which theA pump-motor is to be employed, and the upper frame 4 and 5 should be at a suliicient height above the well-platform to give the necessary amount of drop tothe weight 6, which actuates the motor.

The weight 6 is suspended by a cable '7, which is wound upon a windlass mounted on the main motor-shaft 8, journaled in suitable bearings 9 on the frame of the stand. The windlass comprises a sleeve or hub 10, having a pair of disks or flanges 11, which form the ends of the windlass and which are connected near their peripheries by a circular site end with a ratchet-Wheel 15, in connec tion with which a detent 16 is employed, which when thrown into engagement with the wheel15 holds the mechanism stationary and' prevents the weight 6 from descending. The detent 16 is pivotally mounted at 17 on the frame, so that it may be thrown out of engagement with the ratchet-wheel 15 when it is dey sired to have the mechanism operate for pumping water. The shaft 8 also has fast thereon a gear-wheel 18, which meshes with a pinion 19 on a counter-shaft 20, parallel to the shaft 8, the said counter-shaft being provided with a gear-wheel 21,which meshes with a lpinion 22 on a crank-shaft 23, the said crank-shaft being also provided at' one side ofthe machine-frame with a combined band andrlywheel 24, adapted to receive a belt 25, by means of which the power derived from the motor may be transmitted to any desired machine for the purpose of driving the latter IOO simultaneously with or independently of the pump. The shaft 23 is provided intermediate its ends with a crank 26, around which is received the strap member 27 of a longitudinally-extensible pitman 28, the lower end of which is adapted to be pivotally connected, by means of a bolt or other suitable pin 29, to the plunger 30 of the pump, as shown in Fig. l. The pitman comprises a channeled body 31, having the inbent flanges 32 and the grooves 33 to receive. one of the parallel portions 34 of the strap member 27. The strap member is bent to form an eye for the crank 26 and to bring the parallel terminal portions 34 and 35 of the strap member side by-side. Said terminal portions are spaced apart a distance equal to or slightly greater than the thickness of the flanges 32 by means of an interposed web 36,which is preferably formed integrally With one of the parallel portions of the strap member, as clearly shown in Fig. 4, and both of said parallel portions 34 and 35 are provided with registering openings to receive a clamping-bolt 37, which also passes through a longitudinal slot 38 in the body of the channeled member of the pitman, as clearly illustrated in Figs. 3 and 4. In this Way the pitman is composed of two overlapping members, which are adjustable longitudinally with respect to each other for the purpose of lengthening or shortening the pitman and adapting the motor to be coupled to pumps of different heights and construct-ions.

A single clamping-bolt 37 enables the pitman to be lengthened and shortened, and at the same time the members of the pitman are held in alinement with each other by reason of the channeled and iianged formation of the members. It will also be apparent that by detaching the single bolt 37 the pitman members may be disconnected from each other for uncoupling the motor from the pump and enabling the motor to be used for driving machines arranged contiguous thereto.

In order to admit of winding the cable 7 -upon the Windlass, the pinion 19 is provided with a hub 39, through which passes a detachable key 40, the said key also passing through an opening in the counter-shaft 20. By removing the key 40 the pinion 19 is left loose on the counter-shaft 20, thereby enabling the windlass to be turned with the aid of the winding-crank 14 without actu ating the remainder of the mechanism.

In order to stop the machine and throw it out of operation, the counter-shaft 2O is provided with a cylinder 4l, fast thereon, in connection with which cylinder a brake-shoe 42 operates, the said brake-shoe being substantially crescent shaped or semicircular, as shown in Fig. 5, so as to conform approximately to the periphery of the cylinder 41. The shoe 42 is capable of being moved up or down within a U-shaped guide-frame 43, which embraces the cylinder 4l and has angie-feet 44 offset from the vertical plane of the guide-frame and bolted or otherwise secured to one of the side bars 4 of the frame of the stand. In order to prevent the brake-shoe 42 from turning, the ends of the shoe are notched or grooved, as shown at 45, to receive the side bars of the guide-frame 43 and enable the shoe to be adjusted up and down by means of a feed-screw 46, provided at its upper end with a hand-wheel 47 and adjacent to its lower end with a groove 48, which is engaged by a slotted plate 49, secured to the brake-shoe 42, as illustrated in Fig. 5. In this Way the feed-screw 46 has a swiveled engagement with the brake-shoe and passes through an internally-threaded enlargement 50 at the top of theguide-frame, -so that by turning the hand-wheel 47 the brake-shoe may be moved into and out of frictional engagement with the cylinder 4l.

In operation the brake-shoe is moved into engagement with the cylinder 41 and the key 40 removed. The 4detent 16 is then thrown into engagement with the ratchet-wheel 15. By means of the Winding-crank 14 the weightsuspending cable 7 is then wound upon the Windlass, so as to elevate the weight to the upper limit of its movement. The key 40 may then be replaced and the brake-shoe 42 moved out of engagement with the cylinder 4l. When' it is desired to start the motor, the detent 16 is thrown back and the weight immediately begins to descend and actuate the train of gearing, causing the pitman 28 to reciprocate the pump-plunger. The machine may be stopped at any time by setting the brake-shoe 42. It will further be seen that the motor may be applied 'quickly to any pump by reason of the fact that the pitman is made extensible longitudinally; also, that the parts of the pitman may be disconnected for uncoupling the motor from the pump and enabling the power to be transmitted to any other machine by means of the belt 25.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

1. A pump motor, comprising a crankshaft, in combination with a pump-plunger, and a longitudinally-extensible pitman connecting the crank-shaft and plunger, said pitman comprising a channeled member provided With a longitudinal slot and oppositelyarranged inturned flanges, and a flanged strap member folded to form an eye and to' bring the terminal portions thereof side by side, an intervening web on one of the terminal portions, and a clamping-bolt adjustable in said slot and by which the pitman membersl are relatively adj usted and clamped together.

2. A pump-motor, comprising a stand, a windlass thereon, a weight suspended by a cable wound upon the Windlass, a crank-shaft having a pitman connection with the pumpplunger, a counter-shaft gearedvto the Windthe counter-shaft out of gear with the windlass-shaft and crank-shaft, and a cylinder fast lass-shaft. Io on the counter-shaft, in combination with a In testimony whereof I afx; my signature guide-frame with parallel side portions emin presence of two Witnesses.

bracing the cylinder, a brake-shoe provided GEORGE COOK. with oppositely-loeated notches to engage the Witnesses: side portions of the guide-frame, a feed-screw DAVID R. MCOOY,

for said brakeshOe, and means for throwing DAVID MCOOY. 

